Resonance Reverb does not work in Firefox about resonance-audio-web-sdk HOT 7 OPEN

@drewbitllama @mgorzel Any chance you guys were able to take a look at this?

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@drewbitllama @mgorzel I finally figured this out. If you use a stereo audio file, Firefox does not apply reverb to the source. In order for reverb to be applied to a source in a Resonance Scene in Firefox, the file must be mono. In chrome that does't matter and both mono and stereo files work. We can close this.

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Thanks so much @ianpetrarca for investigating that issue and suggesting a workaround! Mono samples should be generally preferred for spatialization as Resonance Audio does not support independent or linked panning of L/R stereo channels yet. I've added a note on that in the documentation. However, I think it would still be useful to investigate what causes the reverb problem in Firefox, so I will reopen this issue.

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@mgorzel No problem, happy to help. Mono files ultimately make the most sense for a spatialization framework like Resonance. I think that creating a standard for how Resonance handles different file types (mono,stereo, 4-channel Ambix) would be the most helpful. That way developers can expect one result on all platforms.

Just to clarify, a stereo audio file in stereo still spatializes left/right, and has volume attenuation, it's just the reverb that isn't working.

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If you use a stereo audio file, Firefox does not apply reverb to the source.

@ianpetrarca This seems like a bug on FireFox side. No?

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@hoch It's hard to say, I'm not familiar with other websites using Channel Merger and having issues on FF. I'm guessing that's where the issue is occurring? However, stereo files working on Safari/Chrome is a good indicator that it could be something in FF. Stereo files in Resonance Web are a bit trivial since it's made for mono-sound objects. or 4-channel AmbiX. I haven't pursued this further.

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@ianpetrarca Thanks for clarification. Could you provide a simple/reduced repro case for this issue? Looking at the linked code above might take a while.

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